Click Below for lager images:
Comet Linear is coming. Now
at about 10th magnitude in Perseus, the object is only slightly
yellowish in color seen in the bottom image, so no gas action
yet. However, in May this will change and we could have quite
the sky show when it reaches near first magnitude. The upper
image consists of six white light images stacked to show the
extent of the tail. Gaps in the star images are from images that
were left out because of poor seeing. (see below) The bottom
image is in color, at a binned lower resolution. Stars have short
RGB colors in them out of phase because the moving comets head
was aligned on each shot.
Instrument: 12.5" f/5 Home made Newtonian
Platform: Astrophysics 1200 QMD
CCD Camera: SBIG ST8i NABG with Enhanced Cooling
Guider: SBIG ST4
Exposure: L = 6x1m
Location: Payson, Arizona
Elevation: 5150 ft.
Sky: Seeing FWHM = 10 - 30 arcsec (Maxim DL - 1min subframe), Transparency 7/10
Outside Temperature: 0 C
CCD Temperature: -20 C
Processing Tools: Maxim DL, Photoshop, AIP4WIN, RW Debloomer.
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